Face (par) amount of debt instrument at time of issuance.

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Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

Date the debt instrument was issued, in CCYY-MM-DD format.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Gross amount of debt extinguished.

+ References

No definition available.

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Balance Type:	debit
Period Type:	duration

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Balance Type:	credit
Period Type:	instant

- Definition

Fair value of the amount outstanding under the credit facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Indebtedness - Additional Information (Details) $ in Millions				3 Months Ended		6 Months Ended
	May 23, 2019 USD ($)	May 23, 2019 EUR (€)	Dec. 05, 2014 USD ($)	Jun. 29, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 29, 2019 USD ($)	Jun. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)	Mar. 08, 2018 USD ($)	Mar. 08, 2018 EUR (€)	Dec. 05, 2014 EUR (€)
Debt Instrument [Line Items]
Debt instrument, issuance date			Dec. 05, 2014
Loss on extinguishment of debt				$ 0.0	$ 0.0	$ 0.0	$ 0.5
Repayments of debt						24.7
Outstanding balance				73.9		73.9		$ 0.0
2018 Revolver
Debt Instrument [Line Items]
Face amount of debt									$ 1,000.0
Amount borrowed on line of credit				375.0
Borrowings outstanding				$ 325.0		$ 325.0		$ 0.0
2014 Term loan due December 5, 2019
Debt Instrument [Line Items]
Face amount of debt			$ 614.3							€ 350,000,000.0	€ 500,000,000.0
Loss on extinguishment of debt					$ 0.5
2018 Euro-Denominated Term Loan due March 8, 2020
Debt Instrument [Line Items]
Face amount of debt									$ 431.0	€ 350,000,000.0
Retail Bond
Debt Instrument [Line Items]
Interest rate, stated percentage	5.00%	5.00%
Retail bond repayed in full	$ 130.7	€ 120,000,000.0